Clinical Information Discusses physiology, pathophysiology, and general clinical aspects, as they relate to a laboratory test. Carcinoembryonic antigen (CEA) is a glycoprotein normally found in embryonic entodermal epithelium.
Europe's Coldest Cities in Summer. Europe's northernmost city has the continent's coolest summers. No other major city stays anywhere as tepid as ReykjavÃ­k, Iceland, where maximum temperatures average a meagre 12.7 degrees Celsius (54.8 degrees Fahrenheit). That's over five degrees Celsius (10 Â°F) lower than the next coldest city, Leeds.
Generally the summer season lasts about six months, from May to October. July and August are the warmest months, with average temperatures around 27â28 Â°C (81â82 Â°F) during the day and 20 Â°C (68 Â°F) at night.